Quick answers
- Does Caroline A. Fisher accept Medicare assignment?
- Yes. Medicare's clinician data says Caroline A. Fisher accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Caroline A. Fisher see?
- In 2024, CMS data shows 334 Original Medicare patients and 890 services for Caroline A. Fisher. This counts Original Medicare only and measures volume, not quality.
- What is Caroline A. Fisher's NPI number?
- 1992787584. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Caroline A. Fisher, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 334 |
|---|---|
| Services billed to Medicare | 890 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)281 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)171 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)109 services
- Subsequent nursing facility care with high level of medical decision making, per day, if using time, at least 45 minutes (99310)77 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)64 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure74%
- Arthritis44%
- Chronic kidney disease41%
- Diabetes34%
- Osteoporosis32%
Hospitals where Caroline A. Fisher works
Medicare's Facility Affiliation Data lists Caroline A. Fisher at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Mayo Clinic Health System Franciscan Healthcare SpartaSparta, WI · Critical Access Hospital · Emergency services: listed by Medicare · CCN 521305
- Mayo Clinic Health System-Franciscan Medical Center IncLa Crosse, WI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 520004
Practice locations
Addresses where Caroline A. Fisher is enrolled with Medicare (CMS data updated October 2, 2026).
- 191 Theater RdOnalaska, WI 54650 (608) 392‑5000
- 800 E Blackhawk AvePrairie Du Chien, WI 53821 (608) 326‑0808
- 800 W Ave SLa Crosse, WI 54601 (608) 785‑0940
Group practices
Medicare enrollment lists Caroline A. Fisher as a member of this group (CMS data updated October 2, 2026).
- Mayo Clinic Health System-Southwest Wisconsin Region Inc534 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Onalaska
Clinicians with the same Medicare primary specialty in Onalaska, WI — not a recommendation.
Other clinicians in Mayo Clinic Health System-Southwest Wisconsin Region Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Wisconsin School Of Medicine |
| Graduation year | 1993 (33 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1992787584 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians